machines for mixing high viscosity fluids and chemicals, namely, oils, glycerine, pitch, tar, lard, sulphuric acid, honey, syrups, gels, molten glass, molten ceramics, polymers, resins, adhesives, emulsions, bio-mass and bio-fuels, lubricants and penetrates, ethylene glycol, paints, fertilizers, glues, explosives; mixing machines for use in the food, confectionary, dairy, food and beverage, and personal care industries; and parts and fittings thereof for the aforementioned mixing machines